Sash-fastener



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Patented Apr. 19,1898.

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W. A. GOULSON. sAsH PASTENBR.

No. 602,731. Patent-edApr. 19,1898.

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Il Illllllllll mmmnunl me/Moz NTTED STATES- WILLIAM A. COULSON, OF MOSSPOINT, MISSISSIPPI.

sAsH-FASTENER.

SPECIFICATION forming part of Letters Patent No. 602,731, dated April19, 1898.

Application filed MayZ, 1897. Serial No. 638,193. (No model.)

To au whom, t may concern:

Be it known that I, WILLIAn A. CoULsoN, residing at Moss Point, in thecounty of Jackson and State of Mississippi, have invented a new anduseful Window-Lock, of which the following is a specification. g

My invention is in the nature of a device for application to awindow-sash whereby the sash may be freely raised and locked in anyraised position and all rattling of the sash is prevented.

-The object of my invention is to provide a device of this class whichshall be simple, cheap, and strong, easily applied, and effective inoperation.

W'ith this object in View my invention consists of an eccentric pivotedin the windowsash in such a position as to admit of the window beingfreely raised, but which will change its position when an attempt ismade to lower the window and lock the sash by forcing it against theopposite side of the frame.

My invention further consists in the improved construction, arrangement,and combination of details hereinafter fully described, and afterwardspecifically pointed out in the appended claims.

In order to enable persons skilled in the art to which my invention mostnearly appertains to make and use the same, I will now proceedtodescribe its construction and operation, reference being had to theaccompanying drawings, in which- Figure l is a perspective view of thelower portion of a window frame and sash having my invention appliedthereto in position for practical operation. Fig. 2 is a view in sideelevation of my improved window-lock detached from the win dow. Fig. 3is a view of my improved locking-plate in elevation. Fig. 4 is asectional View through the lockingplate and the casing for theeccentric, showing the eccentric in side elevation locked intoengagement with the locking-plate. Fig. 5 is a transverse sectionthrough my improved lock on the line 5 5 ofFig. 2. Fig. 6 isa sideelevation of my improved antirattler. Fig. 7 is a View similar to Fig. 4of my antirattler. Fig. 8 is a detail perspective view of the eccentrichaving my antirattler detached.

Like letters of reference mark the same parts wherever they occurin thevarious iigures of the drawings.

Referring to the drawings by letters, A is the sash, and B the frame, ofa window, being of any ordinary or preferred construction.

O isa casing within which are contained all the operative parts of myinvention. This casing may be of any desired outline-as, for instance,forming slightly more than half a circle-and it may be let into the sashfrom the side or attached upon the face of the sash at the edge thereof.

D is a crescent-shaped metal plate which I denominate my eccentric fromthe fact that it is eccentricallypivoted at D' to the casing C.

E is the main spring, secured upon a pin F at its upper end near thepivot of the eccentric and consisting of two arms, one of which bearsagainst the pin G and the otheragainst the end of the eccentric nearestto the window-frame.

H is a hook-point extending outward and forward from the eccentric andadapted to engage in an opening I in the lock-plate J, secured to theface of the window-frame.

K is a knob projecting from the eccentric through a slot L in thecasing, whereby the eccentric may be operated from the outsid of thecasing.

M is aboli; normally held in position to be engaged by the back point ofthe eccentric and to slip into asocket Nin the eccentric by the springO.

P is a key for withdrawing the bolt from the socket.

Q are rollers pivoted to the outer edge of my eccentric when the deviceis used as an antirattler.

The operation of my invention is as follows: When the window is raised,the eccentric will be moved around upon its pivot against the action ofthe main spring E until the shorter diameter comes opposite to thewindow-facing, which will permit the Window to be freely raised; butwhen an attempt is made to lower the window the eccentric will bepressed around in the opposite direction and the back point will ridebehind the point of the bolt M until the socket N in the eccentric comesopposite to the bolt, when the bolt Icnov will be pressed into thesocket, thus locking the eccentric in position, with the hook H engagingin the socket I of the lock-plate J. This will lock the window in theposition to which it has been moved, which will be depending upon theposition of the lock-plate in the window-frame, the lock-plate beingusually placed at the bottom of the windowframe to lock the window down.When it is desired to raise the window from its locked position, the keyP is turned to bring its wards into contact with the spring O, pressingsaid spring backward and withdrawing the bolt M from the socket N andholding it in its withdrawn position. The eccentric may then be movedagainst the action of the main spring E by pushing the knob K to theright in the slot L (see Fig. 2) and the window raised above thelocking-plate. The knob will then be released,when the sash can befreely raised to any desired position, when any attempt to lower thesash will cause the eccentric to be turned to the right, thus wedgingthe sash firmly against the opposite side and holding it in its raisedposition.

Vhen it is desired to use my device as an antirattler, the rollers Q arepivoted upon the outer edge of the eccentric, and these come in contactwith the sash in raising or lowering, and,while permitting of the freeraising thereof, being pressed against the sash by the main spring E,the lowering of the window will be retarded by reason of the partialrotation of the eccentric on its pivot, due to the contact between therollers and the frame, which will press the sash with considerable forceagainst the opposite side of the frame.

The construction and operation of my device will be readily understoodfrom the foregoing, aud its simplicity, cheapness, and advantages areobvious.

While I have illustrated and described what I believe to be the bestmeans for carrying out my invention, I do not wish to be understood aslimiting myself to the exact construction and arrangement herein shown,but hold that such slight changes and modifications as might suggestthemselves to the ordinary mechanic would properly fall Within the limitand scope of my invention. I

I-Iaving thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

l. The combination of a window sash and frame,with a crescent-shapedcam-faced plate eccentrically pivoted to the sash and projectingtherefrom in contact with the frame, the spring pressing the lower hornof the plate toward the sash, and a spring-bolt engaging an opening inthe inner or upper horn and securing the eccentric in its lockedposition, substantially as set forth.

2. The combination of the window sash and frame with a lock-platesecured to the frame and provided with a suitable socket, a plateeccentrically pivoted to the sash and having a hook to engage in saidsocket and a springbolt adapted to engage in a socket in the eccentricto fasten it in its locked position, substantially as set forth.

WILLIAM A. COULSON.

Vitnesses: V

FRANK RoBINsoN, Ro MoLEoD.

